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Proton, privacy by default Product Manager Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 14 interview experiences · FREE TO READ

3.1 Rounds average
Average Typical difficulty
28.6% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at Proton, privacy by default.

Showing 3 of 14
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Proton, privacy by default

Product Manager

Product · a year ago

Senior Easy Negative experience No offer 3 rounds
Interview process
Recruiter call Technical screen Offer
Interview formats
Behavioral Technical

The first interview was a recruiter call, which felt like a one-sided interrogation with scripted questions and no time for my own questions. Then, the hiring manager interview was more conversational, but it seemed like decisions were based on gut feelings and HiPPOs rather than data, with a lack of user insights or metrics. They also seemed to favor building everything from scratch, which felt odd given their stated goals. The overall vibe was a corporate hierarchy in a startup costume. After that, I got an automated rejection email and received no response when I followed up for feedback. This whole process felt like a waste of time, and I won't be applying again.

Confirmed questions3 questions
  • What factors contribute to a website losing conversion?
  • Is it possible to conduct A/B tests without cookies being installed?
  • Does increased website traffic inherently lead to higher conversion rates?
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Proton, privacy by default

Product Manager

Product · more than a year ago

Mid Difficult Negative experience No offer 5 rounds
Interview process
Recruiter call Take home Technical screen Take home Onsite
Interview formats
Technical Other

This was not a good experience. It took them a month to reply after I applied. First, there was a recruiter screening call. Then I had to do a logic test and a take-home assignment which was quite time-consuming. After I submitted it, I heard nothing for 2-3 weeks. I had to follow up multiple times, and each response took about a week. Then they wanted me to come in person, but first I had to complete another take-home assignment. Since I applied for a Product Manager role, and the assignments were heavily UX-focused (like creating prototypes), I got a bit frustrated. It took about two months just to get the chance to speak with someone from the product team, at which point I withdrew my application. Overall, it was a poor candidate experience.

Confirmed questions3 questions
  • A challenge focused on UX.
  • A test of logic.
  • Design an onboarding flow.
Proton, privacy by default logo
Proton, privacy by default

Product Manager

Product

Senior Average Positive experience No offer 4 rounds
Interview process
Recruiter call Technical screen Take home Panel
Interview formats
Behavioral Technical Presentation

Had a few interview rounds: first a recruiter, then the unit director, followed by a home assignment. Then there was a panel interview where they reviewed my task and asked more skill-related questions. Proton would go silent for a week or more after an interview and then resurface. The home assignment didn't really test what they were looking for. It's worth noting they also want UX designer skills in a PM. Overall, it felt like a lot of guessing and managing the interviewers because they weren't sure what they wanted to assess, and then asking questions based on that uncertainty.

Confirmed questions4 questions
  • Could you outline your vision for the perfect Proton onboarding experience?
  • Describe your ideal team structure for implementing this onboarding vision.
  • How would you segment this vision into manageable steps and decide on their priority?

Proton, privacy by default Product Manager Interview Questions

Quoted word for word from Proton, privacy by default interview reports.

Does increased website traffic inherently lead to higher conversion rates?

Read reports

Is it possible to conduct A/B tests without cookies being installed?

Read reports

What strategies would you employ to efficiently prevent login fraud while maintaining user privacy?

Read report

How would you approach interpreting data when context is limited?

Read report

Could you discuss technical aspects of security and privacy?

Read report

Formats, difficulty and experience

Across all 14 Proton, privacy by default interview reports.

Interview formats

Technical 38.7%
Behavioral 32.3%
Presentation 16.1%
Other 9.7%
Case 3.2%

Interview difficulty

Easy 21.4%
Average 57.1%
Difficult 21.4%

Candidate experience

Positive 28.6%
Negative 71.4%